Page 171 - 2018_IPC
P. 171
APPENDIX E
For SI:1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 L/m, 1 psi = 6.895 kPa, 1 foot per second = 0.305 m/s.
a. This chart applies to fairly rough pipe and to actual diameters, which in general will be less than the actual diameters of the new pipe of the same kind.
FIGURE E103.3(6)
FRICTION LOSS IN FAIRLY ROUGH PIPE a
154 2018 INTERNATIONAL PLUMBING CODE ®
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